The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2352
Hash: 09e935dc464de6cc911aaaa519f4816facad982a37ad6cc878282484ae507bd2
Previous block: 788234a4706b8bea46bf87365f658ae7a0a68d81a8f99a616deff10f138bede1
Next block: 0fa56507761ce97cd40d40602ee252bd286318634a41a2678754fc4c22bd16cb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847279
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 1d4c9db8f2f1e20941e393aa49a4244b07537c9224116ef7380c84b7888310d1
Median time: 1743847278
Difficulty: 4.656542373906925e-10
Confirmations: 291
Chainwork: 0000000000000000000000000000000000000000000000000000000000001262
Bits: 207fffff